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8 - ENG

A10642

GLOSSARY

DUTY CYCLE

Accessories for this unit are available at the store the unit was purchased.

ACCESSORIES

Become familiar with these terms 

before operating the unit.

CFM

:  Cubic feet per minute.

SCFM:

  Standard cubic feet per 

minute; a unit of measure of air 

delivery.

PSIG:

  Pounds per square inch 

gauge; a unit of measure of pressure.

Code Certification: 

Products that 

bear one or more of the following 

marks: UL, CUL, ETL, CETL, have 

been evaluated by OSHA certified 

independent safety laboratories and 

meet the applicable Underwriters 

Laboratories Standards for Safety.

Cut-In Pressure:

  While the motor 

is off, air tank pressure drops as 

you continue to use your accessory. 

When the tank pressure drops to a 

certain low level the motor will restart 

automatically.  The low pressure at 

which the motor automatically restarts 

is called "cut-in" pressure.

Cut-Out Pressure:

  When an air 

compressor is turned on and begins 

to run, air pressure in the air tank 

begins to build.  It builds to a certain 

high pressure before the motor 

automatically shuts off - protecting 

your air tank from pressure higher 

than its capacity.  The high pressure 

at which the motor shuts off is called 

"cut-out" pressure.

Branch Circuit: 

Circuit carrying 

electricity from electrical panel to 

outlet.

This air compressor pump is capable 

of running continuously. However, to 

prolong the life of your air compressor, 

it is recommended that a 50%-75% 

average duty cycle be maintained; that 

is, the air compressor pump should 

not run more than 30-45 minutes in 

any given hour.

SPECIFICATIONS

Model Nos. 

CFFN250T 

Bore   

1.875"

Stroke  

1.250" 

Voltage-Single Phase 

120

Minimum Branch Circuit Requirement 

15 amps

Fuse Type 

Time Delay

Air Tank Capacity (Gallon) 

Approximate Cut-in Pressure 

110 PSIG 

Approximate Cut-out Pressure 

135 PSIG

SCFM @ 40 PSIG 

3.7 

SCFM @ 90 PSIG 

2.6

Summary of Contents for C2001

Page 1: ...250T The Model and Serial No plate is located on the main housing of the tool Record these numbers in the spaces below and retain for future reference Model No ______________________________________ T...

Page 2: ...the symbols below Please read the manual and pay attention to these symbols IMPORTANT SAFETY INSTRUCTIONS Some dust created by power sanding sawing grinding drilling and other construction activities...

Page 3: ...roperty damage To reduce the risk of fire do not allow the compressor to operate unattended Always operate the compressor in a well ventilated area free of combustible materials gasoline or solvent va...

Page 4: ...ndensed water from tank causing rust and thinning of the steel tank Modifications or attempted repairs to the tank Unauthorized modifications to the unloader valve safety valve or any other components...

Page 5: ...ect voltage and adequate fuse protection Sprayed materials such as paint paint solvents paint remover insecticides weed killers may contain harmful vapors and poisons Work in an area with good cross v...

Page 6: ...thing WARNING Risk of Falling A portable compressor can fall from a table workbench or roof causing damage to the compressor and could result in serious injury or death to the operator Always operate...

Page 7: ...parts WARNING Risk of Unsafe Operation Unsafe operation of your air compressor could lead to serious injury or death to you or others HAZARD WARNING Risk of Serious Injury or Property Damage When Tran...

Page 8: ...matically restarts is called cut in pressure Cut Out Pressure When an air compressor is turned on and begins to run air pressure in the air tank begins to build It builds to a certain high pressure be...

Page 9: ...grounding reduces the risk of shock by providing an escape wire for the electric current This air compressor must be properly grounded The portable air compressor is equipped with a cord having a gro...

Page 10: ...6 OR 18 AWG Voltage and Circuit Protection Refer to the specification chart for the voltage and minimum branch circuit requirements Risk of Opertion Certain air compressors can be operated on a 15 amp...

Page 11: ...controls before operating the unit On I Off O Switch Place this switch in the ON I position to provide automatic power to the pressure switch and OFF O to remove power at the end of each use Pressure...

Page 12: ...of each use Check Valve When the air compressor is operating the check valve is open allowing compressed air to enter the air tank When the air compressor reaches cut out pressure the check valve clos...

Page 13: ...ponsibilities Daily or after each use Before each use Check Safety Valve Drain Tank NOTE See Operation section for the location of controls Unit cycles automatically when power is on When performing m...

Page 14: ...then be removed cleaned the reinstalled To Replace or Clean Check Valve 1 Release all air pressure from air tank See To Drain Tank in the Maintenance section 2 Unplug unit 3 Remove the hose by removin...

Page 15: ...ghten with wrench 9 Reapply pipe sealant to gauges quick connect and safety valve 10 Reassemble all components in reverse order of removal Make sure to orient gauges to read correctly and use wrenches...

Page 16: ...ntil tank pressure is approximately 20 psi Release safety valve ring 6 Drain water from air tank by opening drain valve on bottom of tank Risk of Bursting Water will condense in the air tank If not dr...

Page 17: ...Tube fittings are not tight enough Tighten fittings where air can be heard escaping Check fittings with soapy water solution Do Not Overtighten Air leaks at fittings Air leaks in air tank or at air t...

Page 18: ...accessory is being used Compressor is not supplying enough air to operate accessories Prolonged excessive use of air Compressor is not large enough for air requirement Hole in hose Check valve restric...

Page 19: ...19 ENG A10642 NOTES...

Page 20: ...purchaser Air compressors with 60 and 80 gallon tanks will be inspected at the site of installation Contact the nearest Porter Cable Authorized Warranty Service Center that provides on site service c...

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